Diphenyl guanidine

Thiazole and sulfenamide booster, accelerator. Non-nitrosamine-generating; Can replace TMTD in many applications. Excellent accelerator for curing thick rubber articles. DPG has less scorch safety than DOTG. Need slightly more DPG than DOTG to get the same state of cure. DPG produces predominately poly-sulfidic crosslinks which maximizes the tear strength of its vulcanizates.